US Socially Responsible Fund Investment Risks - US Socially Responsible Fund	May 31, 2026
Convertible Securities Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Convertible Securities Risk. Convertible security values may be affected by market interest rates, issuer defaults and underlying common stock values; security values may fall if market interest rates rise and rise if market interest rates fall. Additionally, an issuer may have the right to buy back the securities at a time unfavorable to the Fund.
Derivatives Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Derivatives Risk. The prices of derivatives may move in unexpected ways due to the use of leverage and other factors and may result in increased volatility or losses. The Fund may not be able to terminate or sell derivative positions, and a liquid secondary market may not always exist for derivative positions.
Equity Securities Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Equity Securities Risk. The Fund’s investments in equity securities are subject to the risk that stock prices will fall and may underperform other asset classes. Individual stock prices fluctuate from day-to-day and may decline significantly. The prices of individual stocks may be negatively affected by poor company results or other factors affecting individual prices, as well as industry and/or economic trends and developments affecting industries or the securities market as a whole.
ESG Investment Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	ESG Investment Risk. The Fund’s adherence to its social criteria and application of related analyses when selecting investments may negatively impact the Fund’s performance, including relative to similar funds that use different criteria, or to funds that do not adhere to such criteria or apply such analyses. Social criteria screening limits the availability of investment opportunities for the Fund. If the Fund changes its social criteria or a company stops meeting the Fund’s social criteria, the Fund will sell the affected investments even if this means the Fund loses money. The employment of an independent social research service to assess social criteria and reliance on potentially incomplete or inaccurate data may further negatively affect outcomes. The Fund may invest in companies that do not reflect the beliefs and values of any particular investor. Socially responsible norms differ by country and region, and a company’s practices or the Fund’s assessment of such may change over time.
Failure to Match Index Performance Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Failure to Match Index Performance Risk. The ability of the Fund to match the performance of the S&P 500 Index may be affected by, among other things, changes in securities markets, the manner in which performance of the S&P 500 Index is calculated, changes in the composition of the S&P 500 Index, the amount and timing of cash flows into and out of the Fund, commissions, portfolio expenses, and any differences in the pricing of securities by the Fund and the S&P 500 Index. When the Fund employs an “optimization” strategy, the Fund is subject to an increased risk of tracking error, in that the securities selected in the aggregate for the Fund may perform differently than the S&P 500 Index.
Foreign Investment Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Foreign Investment Risk. Investment in foreign securities involves risks due to several factors, such as illiquidity, the lack of public information, changes in the exchange rates between foreign currencies and the U.S. dollar, unfavorable political, social and legal developments, or economic and financial instability. Foreign companies are not subject to the U.S. accounting and financial reporting standards and may have riskier settlement procedures. U.S. investments that are denominated in foreign currencies or that are traded in foreign markets, or securities of U.S. companies that have significant foreign operations may be subject to foreign investment risk.
Market Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Market Risk. The Fund’s share price can fall because of weakness in the broad market, a particular industry, or specific holdings or due to adverse social, political or economic developments here or abroad, changes in investor psychology, technological disruptions, or heavy institutional selling and other conditions or events (including, for example, military confrontations, war, terrorism, trade wars, disease/virus outbreaks and epidemics). The prices of individual securities may fluctuate, sometimes dramatically, from day to day. The prices of stocks and other equity securities tend to be more volatile than those of fixed-income securities.
Preferred Stock Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Preferred Stock Risk. Unlike common stock, preferred stock generally pays a fixed dividend from a company’s earnings and may have a preference over common stock on the distribution of a company’s assets in the event of bankruptcy or liquidation. Preferred stockholders’ liquidation rights are subordinate to the company’s debt holders and creditors. If interest rates rise, the fixed dividend on preferred stocks may be less attractive and the price of preferred stocks may decline. Preferred stockholders typically do not have voting rights.
Securities Lending Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Securities Lending Risk. Engaging in securities lending could increase the market and credit risk for Fund investments. The Fund may lose money if it does not recover borrowed securities, the value of the collateral falls, or the value of investments made with cash collateral declines. The Fund’s loans will be collateralized by securities issued or guaranteed by the U.S. Government or its agencies and instrumentalities, which subjects the Fund to the credit risk of the U.S. Government or the issuing federal agency or instrumentality. If the value of either the cash collateral or the Fund’s investments of the cash collateral falls below the amount owed to a borrower, the Fund also may incur losses that exceed the amount it earned on lending the security. Securities lending also involves the risks of delay in receiving additional collateral or possible loss of rights in the collateral if the borrower fails. Another risk of securities lending is the risk that the loaned portfolio securities may not be available to the Fund on a timely basis and the Fund may therefore lose the opportunity to sell the securities at a desirable price.
Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	If the value of the assets of the Fund goes down, you could lose money.
Risk Not Insured Depository Institution [Member]
Prospectus [Line Items]
Risk [Text Block]	Shares of the Fund are not bank deposits and are not guaranteed or insured by any bank, government entity or the Federal Deposit Insurance Corporation.

US Socially Responsible Fund Investment Risks - US Socially Responsible Fund

May 31, 2026

Convertible Securities Risk. Convertible security values may be affected by market interest rates, issuer defaults and underlying common stock values; security values may fall if market interest rates rise and rise if market interest rates fall. Additionally, an issuer may have the right to buy back the securities at a time unfavorable to the Fund.

Prospectus [Line Items]

Risk [Text Block]

Derivatives Risk. The prices of derivatives may move in unexpected ways due to the use of leverage and other factors and may result in increased volatility or losses. The Fund may not be able to terminate or sell derivative positions, and a liquid secondary market may not always exist for derivative positions.

Equity Securities Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Equity Securities Risk. The Fund’s investments in equity securities are subject to the risk that stock prices will fall and may underperform other asset classes. Individual stock prices fluctuate from day-to-day and may decline significantly. The prices of individual stocks may be negatively affected by poor company results or other factors affecting individual prices, as well as industry and/or economic trends and developments affecting industries or the securities market as a whole.

ESG Investment Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

ESG Investment Risk. The Fund’s adherence to its social criteria and application of related analyses when selecting investments may negatively impact the Fund’s performance, including relative to similar funds that use different criteria, or to funds that do not adhere to such criteria or apply such analyses. Social criteria screening limits the availability of investment opportunities for the Fund. If the Fund changes its social criteria or a company stops meeting the Fund’s social criteria, the Fund will sell the affected investments even if this means the Fund loses money. The employment of an independent social research service to assess social criteria and reliance on potentially incomplete or inaccurate data may further negatively affect outcomes. The Fund may invest in companies that do not reflect the beliefs and values of any particular investor. Socially responsible norms differ by country and region, and a company’s practices or the Fund’s assessment of such may change over time.

Failure to Match Index Performance Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Failure to Match Index Performance Risk. The ability of the Fund to match the performance of the S&P 500 Index may be affected by, among other things, changes in securities markets, the manner in which performance of the S&P 500 Index is calculated, changes in the composition of the S&P 500 Index, the amount and timing of cash flows into and out of the Fund, commissions, portfolio expenses, and any differences in the pricing of securities by the Fund and the S&P 500 Index. When the Fund employs an “optimization” strategy, the Fund is subject to an increased risk of tracking error, in that the securities selected in the aggregate for the Fund may perform differently than the S&P 500 Index.

Foreign Investment Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Foreign Investment Risk. Investment in foreign securities involves risks due to several factors, such as illiquidity, the lack of public information, changes in the exchange rates between foreign currencies and the U.S. dollar, unfavorable political, social and legal developments, or economic and financial instability. Foreign companies are not subject to the U.S. accounting and financial reporting standards and may have riskier settlement procedures. U.S. investments that are denominated in foreign currencies or that are traded in foreign markets, or securities of U.S. companies that have significant foreign operations may be subject to foreign investment risk.

Market Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Market Risk. The Fund’s share price can fall because of weakness in the broad market, a particular industry, or specific holdings or due to adverse social, political or economic developments here or abroad, changes in investor psychology, technological disruptions, or heavy institutional selling and other conditions or events (including, for example, military confrontations, war, terrorism, trade wars, disease/virus outbreaks and epidemics). The prices of individual securities may fluctuate, sometimes dramatically, from day to day. The prices of stocks and other equity securities tend to be more volatile than those of fixed-income securities.

Preferred Stock Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Preferred Stock Risk. Unlike common stock, preferred stock generally pays a fixed dividend from a company’s earnings and may have a preference over common stock on the distribution of a company’s assets in the event of bankruptcy or liquidation. Preferred stockholders’ liquidation rights are subordinate to the company’s debt holders and creditors. If interest rates rise, the fixed dividend on preferred stocks may be less attractive and the price of preferred stocks may decline. Preferred stockholders typically do not have voting rights.

Securities Lending Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Securities Lending Risk. Engaging in securities lending could increase the market and credit risk for Fund investments. The Fund may lose money if it does not recover borrowed securities, the value of the collateral falls, or the value of investments made with cash collateral declines. The Fund’s loans will be collateralized by securities issued or guaranteed by the U.S. Government or its agencies and instrumentalities, which subjects the Fund to the credit risk of the U.S. Government or the issuing federal agency or instrumentality. If the value of either the cash collateral or the Fund’s investments of the cash collateral falls below the amount owed to a borrower, the Fund also may incur losses that exceed the amount it earned on lending the security. Securities lending also involves the risks of delay in receiving additional collateral or possible loss of rights in the collateral if the borrower fails. Another risk of securities lending is the risk that the loaned portfolio securities may not be available to the Fund on a timely basis and the Fund may therefore lose the opportunity to sell the securities at a desirable price.

Risk Lose Money [Member]

Prospectus [Line Items]

Risk [Text Block]

If the value of the assets of the Fund goes down, you could lose money.

Risk Not Insured Depository Institution [Member]

Prospectus [Line Items]

Risk [Text Block]

Shares of the Fund are not bank deposits and are not guaranteed or insured by any bank, government entity or the Federal Deposit Insurance Corporation.